Leather-finishing machine



(No Model.) 2 Sheets-S heet 1.

' B. D. OHALKLEY.

LEATHER FINISHING MACHINE. No. 443,896. j Patented Dec. 30, 1890.

I @ZZ Z MH (No Model.) 2 Sheets-$116291; 2.

'B. D. GHALKLEY. LEATHER FINISHING MACHINE.

No. 443,896 PatentedjDec. 30, 1890.

WWI/A UNrrED STATES FATENT EEICE.

)ERNARD D. CIIALKLEY, OF RICHMOND, VIRGINIA.

LEATHER-FINISHING MACHINE.

SPECIFICATION forming part of Letters Patent No. 443,896, dated December30, 1890.

Application filed June 17, 1890- Serial No. 355,723. (No model.)

To all whom it may concern:

Be it known that l, BERNARD D. CHALK- LEY, a citizen of the UnitedStates, residing at Richmond, in the county of Henrico and State ofVirginia, have invented new and useful Improvements in Leather FinishingMachines, of which the following is a specification.

This invention has for its object to provide a novel, simple, andefiicient machine which is specially organized to be operated at willfor boarding, corrugating, embossing, 11ammering, or pebblingleather,wherebyany one of the operations mentioned iselfected by mechanicalcontrivances to reduce the manual labor and number of machines usuallyrequired for the same purpose.

To accomplish this object my invention involves the features ofconstruction, the combination or arrangement of devices, and theprinciples of operation hereinafter described in detail, and specifiedin the claims, reference being made to the accompanying drawings, inwhich Figure 1 is a perspective view of a leatherfinishing machineembodying my invention. Fig. 2 is a longitudinal sectional view of thesame. Fig. 3 is a vertical sectional view taken on the lines; 00, Fig.2. Figs. 4, 5, and 6 are sectional views of different forms of finishingface-plates adapted to the reciprocating plunger; Fig.7, a sectionalview ofa faceplate, showing a modification of the devices for attachingit to the plunger.

In order to enable those skilled in the art to make and use myinvention,1 willnow describe the same in detail, referring to thedrawings, wherein The numerals 1 indicate the side standards,

and 2 and 3 horizontal brackets extending inopposite directions from thestandards and respectively supporting the delivery-table at and thereceiving-table 5. A horizontal plate or bar 6 connects the sidestandards below the plane of the tables and serves as a support forspiral or other suitable springs 7, on the upper ends of which rests ayielding bedplate 8, which normally stands with its top surfaceapproximately flush with the upper sides of the delivery and receivingtables. The bed-plate is preferably provided with pendent rods extendingthrough the springs to sustain the latter in correct position. I haveexhibited a pair of springs and a pair of pendent rods; but obviouslythe number thereof may be varied.

The side standards are provided on their inner sides with verticalguideways 9, receiving slide-blocks 10 on the ends of a horizontalplunger or cross-head 12, having pitman-connections 13 with a triplecrank-shaft 14, journaled in the standards and having a drive wheel orpulley 15, which can be revolved by belt-connection with a suitableengine, such as a steam, electric, or hydraulic motor. The drive-shaftcomprises two cranks 16, to which the pitmen 13 are connected, and anend crank 17, to which is connected one end of alink 18, having itslower end pivoted to a lever 19, loosely hung, as at 20, on the shaft ofone of the feed-rollers 21 and 22 and carrying a spring-pawl 23, whichengages a ratchet-wheel 24: on the feed-roller 21, that supports thepawl-carrying lever in such manner that as the'triple crank-shaftrevolves and reciprocates the plungerthe ratchet-wheel and feedrollersare intermittently rotated. The feedroller 22 is adapted to yield, andfor this purpose its journals rest against half-boxes 2t, acted upon bysprings 25, the object being to positively feed the leather between theplunger and the yielding bed-plate and. to accommodate leather ofvarying thickness. The plunger carries onits lower side a removableface-plate 26, which is prepared to operate on the leather according tothe conditions required. A single face-plate cannot be utilized for theseveral operations desired, and hence I provide a series ofinterchangeable face-plates, each having its acting face pre pared toattain the desired end. The faceplates can be detachably connected withthe plunger by a dovetailed gib or tongue 27 in one part entering adovetailed groove 28 in the other part, or the face-plate could be pro-1 and 3, while the pebbliug-plate may be roughened, as in Fig. 4:. Aplate for corrugating leather may be shaped as in Fig. 5, and anembossing or ornamenting plate may be formed as in Fig. 6, with theornamentation in relief as is ordinarily practiced in embossing fabrics.The bed-plate should also be provided with a detachable face the same asthe plunger, whereby interchangeable faces can be used on the bed-plate,as described with reference to the plunger.

In operation the single drive-shaft is revolved and operates toreciprocate the plunger and act on the leather which is supported by theyielding bed'plate, and at each ascent of the plunger the leather isadvanced the correct distance by the feed -rollers through the medium ofthe link, the pawlcarrying lever, and the ratchet-wheel. Thedelivery-table is provided with a rollingsupport 3t to facilitate themovement of the leather.

In treating fine leathers the bed plate should yield slightly under theinfluence of pressure exerted by the plunger; but for operating on othergrades of leather or for the boarding and hammering steps the bed-plateshould be rigid or stand immovable. To accomplish this I provide meansfor locking the bed-plate immovable at will, which can be effectedthrough the medium of a screw-jack 32, ofany desired construction,fastened to the spring-supporting plate or bar 6 and capable ofadjustment to sustain and hold the bedplate in dependent of the sprinThe leather can thus be hammered or otherwise acted upon while thebed-plate is rigid or stationary.

The invention provides a single machine which can be utilzed at will forhammering or boarding, corrugating, embossing, pebbling, and likeoperations, and reduces in a large measure the labor and expense usuallyincident to these several operations.

Having thus described my invention, what I claim is 1. In aleather-finishing machine, the combination of the crank-shaft, theplunger carrying a face-plate and reciprocated by crank connections Withthe shaft, the feed-rollers intermittently rotated by a paWl-and-ratchetconnection with a crank of the shaft, and the yielding bed-plate forsupporting the leather, substantially as described.

5% In a leather-finishing machine, the combination of the triplecrank-shaft, the plunger connected with a pair of the cranks andcarrying a face-plate, the feed-roller having a ratchet-wheel, apawl-carrying lever connected with the remaining crank of the shaft, andthe yielding bed -plate for supporting the leather, substantially asdescribed.

In a leatl'ier-finishing machine, the combination of a crank-shaft, aplunger carrying a face-plate and reciprocated by the shaft, the feedrollers intermittently rotated by the shaft, the spring yielding bedplate, and means for locking the bed-plate immovable or rigidly at will,substantially as described.

at. In a leather-finishing machine, the combination, with a crank-shaftand a plunger rcciprocated by the shaft, of a removable faceplatecarried by the plunger, means for detachably connecting the face-plateto the plunger, the feed'rolls intermittently rotated by thecrank-shaft, a yielding bedplate for the leather, and a device below thebed-plate for locking the latter immovable or rigid at the will of theoperator, substantially as described.

5. A leather-finishing machine consisting of a reciprocating plungerhaving a dovetailed recess, the interchangeable dovetailed face -platesfor hammering, pebbling, and embossing leather, intermittently-rotatingfeed-rolls, one of which carries a ratchetwheel, a crank-shaft whichreciprocates the plunger, a pawl-carrying lever mounted on a crank ofthe shaft and having its pawl engaging the ratchetwvheel on thefeed-roller for intermittently rotating the latter as the crank-shaftrotates, and the yielding bedplate for supporting the leather,substantially as described.

In testimony whereof I have affixed my signature in presence of twowitnesses.

BERNARD D. CHALKLEY.

\Vitnesses:

M. W. BAUGHAN, \VILSON WILLIAMS.

